If autoranging is enabled (on), after each current measurement is made, the current range is adjusted before the next point is recorded. The new current range is calculated so that the measured current optimally fills the A/D converter with little danger of overflow.
By default, current autoranging is enabled. Current autoranging is not recommended if data are acquired faster than 1 point per second (with default filter settings).
TRUE is autoranging to be enabled (default setting)
FALSE is autoranging to be disabled.